<?xml version="1.0" encoding="utf-8"?>
<!-- Mutliple embedded schema/annotation/appInfo that contain linkbases - XBRL Valid -->
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ci="http://www.UBmatrix.com/Patterns/BasicCalculation" targetNamespace="http://www.UBmatrix.com/Patterns/BasicCalculation" elementFormDefault="qualified" attributeFormDefault="unqualified">
  
  <!-- Mutliple embedded schema/annotation/appInfo -->
 <annotation>
  <appinfo>
  	<!-- Embedded Presentation Linkbase -->
        <linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
          <presentationLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link" xlink:title="Presentation, All">
            <loc xlink:type="locator" xlink:href="#ci_PropertyPlantEquipment" xlink:label="ci_PropertyPlantEquipment" />
            <loc xlink:type="locator" xlink:href="#ci_Land" xlink:label="ci_Land" />
            <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ci_PropertyPlantEquipment" xlink:to="ci_Land" order="1" use="optional" />
          </presentationLink>
        </linkbase>
    </appinfo>
    
    <appinfo>
        <!-- Embedded Calculation Linkbase -->
          <linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
            <calculationLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link" xlink:title="Calculations, All">
              <loc xlink:type="locator" xlink:href="#ci_TotalPropertyPlantEquipment" xlink:label="ci_TotalPropertyPlantEquipment" />
              <loc xlink:type="locator" xlink:href="#ci_Land" xlink:label="ci_Land" />
              <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ci_TotalPropertyPlantEquipment" xlink:to="ci_Land" order="1" weight="1" use="optional" />
            </calculationLink>
          </linkbase>
    </appinfo>
  
  </annotation>
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="xbrl-instance-2003-12-31.xsd" />
  <element id="ci_Land" name="Land" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" />
  <element id="ci_PropertyPlantEquipment" name="PropertyPlantEquipment" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" abstract="true" nillable="true" />
  <element id="ci_TotalPropertyPlantEquipment" name="TotalPropertyPlantEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" />
</schema>
